Advertisements
Advertisements
प्रश्न
The velocity-time graph of a moving body is given below in Figure

The acceleration in parts AB, BC and CD.
Advertisements
उत्तर
Acceleration in the part AB = Slope of AB
= tan (∠BAD)
= (30/4) ms-2
= 7.5 ms-2
Acceleration in the part BC = 0 ms-2
Acceleration in the part CD = slope of CD = -tan (∠CDA)
= -(30/2) ms-2
= -15 ms-2
APPEARS IN
संबंधित प्रश्न
Name the physical quantity obtained by dividing ‘Distance travelled’ by ‘Time taken’ to travel that distance.
Write the formula for acceleration. Give the meaning of each symbol which occurs in it.
Which of the following statement is correct regarding velocity and speed of a moving body?
Which of the following could not be a unit of speed?
Give one example of following motion :
Uniform velocity
A car is moving in a straight line with speed 18 km h-1. It is stopped in 5 s by applying the brakes. Find:
- the speed of car in m s-1
- the retardation and
- the speed of car after 2 s of applying the brakes.
The velocity-time graph of a moving body is given below in Figure

Displacement in each part AB, BC and CD.
Draw a diagram to show the motion of a body whose speed remains constant, but velocity changes continuously.
Write down the type of motion of a body along with the A – O – B of the following distance – time graph.

Which of the following figures (Fig. 8.3) represents uniform motion of a moving object correctly?
